Question: What position did Hubert Humphrey hold that ended in 1964?
Paraphrase: What job did Hubert Humphrey have that ended in 1964?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q209989 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1964')) }